40 extruded aluminum corner bracket used to connect pieces of 40mm aluminum extrusion at a 90 degree angle suitable for most of metric 40 series aluminum profile extrusion.
Advantage: concealed corner brace, the l corner bracket can be completely hidden in the slot of the aluminum extrusions. 4 holes, compared to 2 holes, more screws are fixed more firmly and not offset.
Material: electrophoresis zinc alloy, has excellent features in high abrasion resistance, rust proof and stability.
4040 series aluminum profile connector set widely used for building industrial aluminum frame structures, 3d printers, cnc routers, cnc laser cutters, robotics projects, 3d carvers, machine guards, workstations, etc